Not happy with the weight loss

Carisa says she can see results in my face and upper body, but I am not taking weight off. Kind of stuck at 240. Maybe I'm adding muscle. Sounds like a fat guy excuse though so I downloaded a food tracking app called 'Lose It!' for my iPhone. I'm going to try and track the food and the calorie burn and see if I can figure out what's up. I did have a small piece of chocolate cake last night.